Antiskid device



Dec. 28', 1937. M. F, SCHULZ i ANTISKID DEVICE Filed NOV. 15, 1955 INVENTOR HIS ATTORNEYS,

atented I'I '1937 3 im Inl i,

My invention relates to automotive vehicles,`

and has among' its objects and .advantages the provision of an improved anti-skid attachment for vehicle tires.

In the accompanying drawing:

Fig. 1 is a plan view partly in section;

Fig. 2 is a view illustrating a tire in cross section with my attachment connected therewith;

Fig. 3 is a perspective View of the anti-skid element; and i Fig. 4 is a perspective view of a tire protecting element associated with the lug structure.

In the embodiment selected to illustrate my invention, I make use of anti-skid lugs l2 con'- nected with chains l2 provided with a buckle It and a strap 16 for connecting the device with the tire. In Fig.`2, I illustrate the chains I2 as partly encircling the tire with the strap lli connected with the buckle for firmly drawing the lug structure I0 to the tire. I provide a resilient pad I8 under each lug I2 and enclose the chains l2 in flexible tubing to protect the tire.

In constructing the pads I8, I make cross sectional cuts 20 in a piece of rubber hose 22, and sever the material between the cuts 20 longitudinally and atten the material (see Fig. 4). Thus, the pads i8 are integrally connected with the tubular extensions 24 which enclose the chains. I prefer to cut the ends of the extensions 2t at an angle 26 to facilitate free movement of the bars 28 connecting the buckle It and the strap It with the chains l2. The lips 30 provide protection for the tire in the same way as the tubular extensions 2t.

Referring to Fig. 3, each of the anti-skid lugs I0 comprises a rib 32 having attened ends 3M provided with openings 36 for the reception of the end links of the chains I2 associated therewith. Four ribs 38are formed integrally with the rib 32 and project laterally therefrom. 'Ihe rib 32 is provided with a tapered bearing surfaceV lli and the ribs 38 are provided with similar bearing surfaces 42. The rib 32 is of uniform width throughout its entire length, while the ribs 42- (Cl. lim- 14) 22, as well as the angular faces of the ribs 33 and their tapered configuration, tend to loosen the accumulation of snow, ice, etc., through the application of pressure thereto when the weight of the car is carried by the area of the tire to which the device is attached. In addition, the anti-skid devices It bear against the resilient pads I t, the pressure modifiable character of which tends to enhance the cleaning characteristics of the lug structure. The yielding nature of the pads I8 tends to break loose accumulations of snow and the like which are packed between the lugs, whileA I the tapered and angular configuration of the latter aids the pads l2 in breaking and loosening the accumulations.

While I have illustrated two anti-skid devices I2 associated as a unit, it will be understood that only one or more than two devices may be ernployed.

In Fig. 2, I illustrate the rib 32 as being curved slightly to conform to the general curvature of the tire 22. The ribs 2t are arranged at right angles to the rib t2 so that a two-directional function is attained.

Without further elaboration, the foregoing will so fully explain my invention that others may, by applying current knowledge.. readily adapt the same for use under various conditions of service.

I claim;

1. An anti-smd device for' attachment to a vehicle tire, comprising a lug unit, means for attaching the lug unit to the tire, and resilient means positioned between the lug unit and the tire and having integral extensions housing said means.

`2. 'Ihe combination with an anti-skid device comprising a lug unit having chains connected therewith for 'attachment to a vehicle tire, of a tire protecting device attached to the lug unit and the chains, said tire protecting device comprising tubular members housing the chains and an integral pad arranged between the lug unit and the tire. i

3. In an anti-skid device for attachment to a vehicle tire, a lug unit having chains for connection with the vehicle tire, a cushioning pad extending over one face of the lug, to be positioned adjacent the vehicle tire, said cushioning pad including tubular extensions housing the chains. 

